Microwave mediated synthesis of ZnS spherical nanoparticles for IR optical ceramics

D. Ravichandran; T. Wharton; B. Devan; R. Korenstein; R. Tustison; S. Komarneni

doi:10.1117/12.883557

20 May 2011 Microwave mediated synthesis of ZnS spherical nanoparticles for IR optical ceramics

D. Ravichandran, T. Wharton, B. Devan, R. Korenstein, R. Tustison, S. Komarneni

Proceedings Volume 8016, Window and Dome Technologies and Materials XII; 80160K (2011) https://doi.org/10.1117/12.883557
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

The existing material choice for long-wave infrared (LWIR) and semi-active laser domes is multispectral zinc sulfide (ZnS), made by chemical vapor deposition. An alternative route to make more erosion-resistant ZnS could be through hot pressing ZnS nanoparticles into small-grain material. We have attempted to produce ZnS nanoparticles both by microwave and microwave-hydrothermal methods. Microwave route produced ultrahigh purity, homogeneous, well dispersed, and uniformly spherical ZnS nanoparticles. Microwave-hydrothermal route produced equiaxed cubic-faceted nanoparticles. The powder X-ray diffraction patterns of ZnS shows the presence of broad reflections corresponding to the (1 1 1), (2 2 0), and (3 1 1) planes of the cubic crystalline ZnS material. The domain size of the particles estimated from the Debye-Scherrer formula for the main reflection (111) gives a value of 2.9 and 2.5 for the microwave and microwave-hydrothermal methods respectively.

Citation Download Citation

D. Ravichandran, T. Wharton, B. Devan, R. Korenstein, R. Tustison, and S. Komarneni "Microwave mediated synthesis of ZnS spherical nanoparticles for IR optical ceramics", Proc. SPIE 8016, Window and Dome Technologies and Materials XII, 80160K (20 May 2011); https://doi.org/10.1117/12.883557

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